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| Number | Title | Issue Date |
| 7353693 | Evaluation apparatus for scientific phenomena and evaluation method for scientific phenomena using the same In the evaluation apparatus of the present invention, there are formed a plurality of minute channels having a cross-sectional area of not more than 1 mm2, one end of each of these channels joins in at a single meeting point and, when liquids are put into... | 04/08/2008 |
| 7159602 | Flow-measuring valve device and method A flow measuring valve device (1) for fluid, the flow measuring valve (1) comprising a first restriction (48) and a second restriction (76) connected in series with the first restriction (48), the flow rates of said restrictions ( | 01/09/2007 |
| 7143637 | Dielectric slit die for in-line monitoring of liquids processing The dielectric slit die is an instrument that is designed to measure electrical, rheological, ultrasonics, optical and other properties of a flowing liquid. In one application, it is connected to the exit of an extruder, pump or mixing machine that passes liquefied ... | 12/05/2006 |
| 7144531 | Method of and device for evaluating resin using injection molding machine A method of and an apparatus for measuring and evaluating characteristics of material resin using an injection molding machine. Injections of resin are performed with different resin temperatures TCi and different injection velocities Vj to detect injection pressure... | 12/05/2006 |
| 7108500 | Process and apparatus for recycling of PET-material Within a process for recycling of PET-material and/or objects of PET, the PET-material to be processed is heated and dried in the course of a pre-treatment step and simultaneously is crystallized at elevated temperature. This pre-treatment step is followed by a main... | 09/19/2006 |
| 7049147 | Method for process line testing An apparatus capable of characterizing the fluid content of chemicals in a reaction line comprises a rheometer. The apparatus can be connected to or included in a reaction flow stream, and has a retractable wall 26 that opens to provide an opening 28 t... | 05/23/2006 |
| 7013714 | Viscosity measurement apparatus A viscosity measurement apparatus, or viscometer, including a fluid flow channel, a heating element disposed at least around an exterior portion of the fluid flow channel near an inlet end, and a temperature sensor disposed within the fluid flow channel downstream f... | 03/21/2006 |
| 6990851 | Microfluidic viscometer Microfluidic devices, systems, and methods measure viscosity, flow times, and/or other flow characteristics within the channels, and the measured flow characteristics can be used to generate a desired flow. Multi-reservoir pressure modulator and pressure controller ... | 01/31/2006 |
| 6842009 | Biohazard sensing system and methods thereof A sensing system for a target includes a member with an embedded charge, at least one input electrode, at least one output electrode, at least one common electrode, one or more probes, an input system, and an output monitoring system. The input and output electrodes... | 01/11/2005 |
| 6840092 | Method and apparatus for rheometry, and its application to control of polymer manufacture A method and apparatus for studying the properties of a fluid are provided in which in which a rheometer is used to obtain, for example, value(s) indicative of the shear stress in the fluid to thereby obtain a set of data. The data is then directly compared using, f... | 01/11/2005 |
| 6739188 | Testing device for the ultrasonic inspection of barstock The invention relates to a test device for the ultrasonic testing of strand material, comprising a) a stationary container that defines a substantially cylindrical interior space that has a larger diameter than the strand material and that has a cylinder axis, and b... | 05/25/2004 |
| 6581440 | Process and device for determining changes in liquid media, in particular coating agents under shear stress A process and a device for determining changes in a liquid medium, in particular a liquid coating agent or its components, caused by shear stress, in which a given volume of the medium is allowed to pass repeatedly through a shear unit under reproducible ... | 06/24/2003 |
| 6405579 | Scaleless on-line rheometer device A system for providing process control information, such as viscosity, concerning a polymer melt comprises a means containing a polymer melt under pressure; means for diverting a stream of the polymer melt directly from said containing means to and throug... | 06/18/2002 |
| 6386016 | Method and device for simultaneous determination of shear viscosity and extensional viscosity In a method for continuous or discontinuous measurement of shear and strain viscosities of Newtonian and non-Newtonian liquids, in particular structurally viscous liquids such as polymer melts and solutions and elastomers as well as other structural liqui... | 05/14/2002 |
| 6250132 | Method and apparatus for real time gas analysis A modular apparatus for analyzing a fluid includes a disposable fluidic sensor module, a replaceable transducer module, and an expendable electronics package. The disposable fluidic sensor includes a fluidic flowmeter and a capillary structure formed in a... | 06/26/2001 |
| 6216528 | Method and apparatus for determining a viscosity of an actuating fluid The present invention provides a method and apparatus for determining the viscosity range and/or oil grade of an actuating fluid in a fuel system. The method includes the steps of determining a flow, pressure, and temperature of the actuating fluid, and r... | 04/17/2001 |
| 5974866 | On-line rheometer device A system for providing process control information, such as viscosity, concerning a polymer melt comprises a means containing a polymer melt under pressure; means for diverting a stream of the polymer melt directly from said containing means to and throug... | 11/02/1999 |
| 5959195 | Process for determining and evaluating melt flow index values A method is proposed for determining and evaluating melt flow index values (MFR values) of thermoplastic materials with the aid of a continuously operating on-line capillary rheometer. The pressure difference Ɗp between the inlet and the outlet of a meas... | 09/28/1999 |
| 5900539 | Device and method for determining rheological quality of non-newtonian liquids A method for evaluating rheological properties of certain non-Newtonian liquids employs the principle of a multiple forced flow of a single sample of the liquid through an orifice, thus effecting a significant elongation of the sample. The liquid is force... | 05/04/1999 |
| 5583284 | Method for monitoring grease consistency The invention relates to continuous grease making processes. The invention further relates a method for monitoring the consistency of the final product stream of a continuous grease making process. The finished product is passed through a venturi where a ... | 12/10/1996 |
| 5372034 | High solids paint viscometer The invention provides a viscosity cup with an upward extending tube or lip, which provides a cut off point for paint draining through an orifice, providing more consistent viscosity measurements.... | 12/13/1994 |
| 5277058 | Adjustable gap rheometer An improved rheometer of the present invention includes an adjustable gap through which a flowing system is forced. The inner cavity dimension of the gap is variable so as to give a user of the rheometer an ability to vary the separation gap and the lengt... | 01/11/1994 |
| 5259238 | Flow tester for thermoplastic, and strand cutting method According to the present invention, there is provided a flow tester for thermoplastic which uses an extrusion type plastometer including a vertically supported cylinder, a piston on which a weight is mounted at an upper portion thereof and which is insert... | 11/09/1993 |
| 4882930 | Melt indexer system with robot operation A melt indexer system for determining the melt index of a plastic by testing. The melt indexer system comprises a plurality of melt indexers, each of the melt indexers including a melt chamber into which a sample of plastic to be tested is placed, a heate... | 11/28/1989 |
| 4875363 | Apparatus and method for testing flow characteristics of molding compounds An apparatus and method for testing the flow characteristics of molding compounds includes upper and lower mold portions movable relative to one another. The lower mold portion has formed therein a central cavity and a channel extending therefrom with scr... | 10/24/1989 |
| 4850217 | Adaptive process control for injection molding An injection molding machine is utilized to develop PVT constants for a given material by pressurizing the material in the barrel against the blocked outlet nozzle, measuring the volume during pressurization, and then weighing the pressurized shot after i... | 07/25/1989 |
| 4798081 | High temperature continuous viscometry coupled with analytic temperature rising elution fractionation for evaluating crystalline and semi-crystalline polymers A method and apparatus for analyzing a solution of a crystalline or a semi-crystalline polymer sample to determine a crystallinity versus weight percent profile concurrently with viscosity average molecular weight. The polymer sample is first precipitated... | 01/17/1989 |
| 4677845 | Device for detecting viscosity of liquid A device for detecting viscosity of a liquid which varies with time includes a first tank provided with an overflow section for maintaining a predetermined liquid height, and a second tank fluidly communicated to the first tank and provided with a restric... | 07/07/1987 |
| 4615210 | Viscometer system A viscometer system to measure the viscosity at high shear rates of thick liquids such as coal slurries includes a vessel to contain the liquid and a nitrogen pressure source connected to the vessel to apply nitrogen pressure to the liquid. A valve operat... | 10/07/1986 |
| 4541270 | Apparatus for testing plastic compositions An apparatus for the laboratory testing of plastic compositions as to their extrudability comprises a housing with two mutually parallel, intersecting cylindrical bores occupied by two counterrotating plasticizing screws each having two sections with thre... | 09/17/1985 |
| 4454751 | Extrudate swell rheometer and method of using same A rheometer for measuring the extrudate swell of polymeric solutions. The eometer has an upper and lower transparent reservoir with a capillary tube therebetween. The flow of solution between reservoirs from upper to lower is provided by gas pressure. Ini... | 06/19/1984 |
| 4449395 | Pheological measurement method and apparatus Method and apparatus for testing thermoplastic material comprising: passing as a stream a fractional, continuous, molten and flowable sample of the material to and successively through each of either a controllable pumping zone maintained at constant temp... | 05/22/1984 |
| 4400973 | Efflux viscosity cup This invention provides a rugged dip-type viscometer suitable for use in a rotogravure printing plant, for example. The capillary of the viscometer is joined to a slotted protective collar and gives high precision measurements with inks that contain air.... | 08/30/1983 |
| 4241602 | Rheometer A high precision continuous flow rheometer utilizes an elongated restriction such as a slit or capillary tube that is supplied with fluid from a microprocessor controlled metering pump at various flow rates. An inlet chamber having a longitudinal axis tha... | 12/30/1980 |
| 4229970 | Method and apparatus for measuring the rheological properties of an extrudable material The rheological properties of an extrudable material can be measured by extruding a strand of the material, measuring its diameter continuously, to give a series of diameter values, interpreting the variations in the strand diameter so as to characterize ... | 10/28/1980 |
| 4185493 | Viscosity measuring instrument A rheometer which is especially useful for measuring the viscosity of a heated coal-type material which undergoes phase changes at elevated temperatures, and which is of the type that includes a cylinder with a narrow exit and a piston for applying pressu... | 01/29/1980 |
| 4137754 | Melt rheometer for the measurement of flow properties of foamable plastics and polymer compositions An apparatus and method for the determination of the flow properties of thermoplastic materials in admixture with volatile liquids or other additives comprising an extruder which is employed to melt the polymer and admix therewith volatile blowing agents ... | 02/06/1979 |
| 4013066 | Processes for menstrual cycle phase determination A method for obtaining and testing a bodily mucus for determining the rheological properties of the bodily mucus in order to ascertain menstrual cycle phase using a sample collecting probe and a bearing member. A mucus sample from a bodily cavity is obtai... | 03/22/1977 |
